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From:
Charles Pritchard
To:
Richard Hodgson
Date:
[1 March 1864]
Source of text:
RS:HS 14.90
Summary:

Cites quotation from Cape Results proving that JH invented the diagonal solar eyepiece. Discusses RH's claim. Note to JH accompanies this letter.

Contributor:
John Herschel Project
From:
Herbert Spencer
To:
Sir John Herschel
Date:
[1 March 1864]
Source of text:
RS:HS 16.493
Summary:

Doubts the claim that Auguste Comte has significantly influenced English scientists. Asks whether JH believes Comte has influenced JH or others. Asks whether it is more difficult to calculate the moon's motion or the motion of a projectile through a resisting medium.

Contributor:
John Herschel Project